Today the greatest single source of wealth is between your ears.

Today the greatest single source of wealth is between your ears.

Brian Tracy

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2017 November 05	Origin: Tweet Link: https://twitter.com/BrianTracy/status/89442832179404800 Today the greatest single source of wealth is between your ears. — Brian Tracy (@BrianTracy) July 8, 2011	Image evidence

American motivational speaker and writer

January 5th, 1944